USGS Water-Year Summary 2019
01582000 LITTLE FALLS AT BLUE MOUNT, MD
LOCATION - Lat 39°36'14.7", long 76°37'13.7" referenced to North American Datum of 1983, Baltimore County, MD, Hydrologic Unit 02060003, on left bank at downstream side of Pennsylvania Railroad bridge (converted to the North Central-Gunpowder Falls State Park Trail), 0.2 mi north of Blue Mount, 0.6 mi upstream from mouth, 0.9 mi downstream from First Mine Branch, and 1.2 mi south of White Hall.
DRAINAGE AREA - 52.9 mi².
- WSP 111: 1944(M), 1945-47(P). WDR MD-DE-85-1: 1984(P).
PERIOD OF RECORD - June 1944 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 302.32 ft above North American Vertical Datum of 1988.